You are viewing an obsolete version of the DU website which is no longer supported by the Administrators. Visit The New DU.
Democratic Underground Latest Greatest Lobby Journals Search Options Help Login

Reply #67: Good Job Mr. Pitt ...On the cross hairs symbol it's what is called the "principal point". [View All]

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » General Discussion Donate to DU
Ellipsis Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Jan-11-11 02:29 AM
Response to Original message
67. Good Job Mr. Pitt ...On the cross hairs symbol it's what is called the "principal point".
Edited on Tue Jan-11-11 02:55 AM by Ellipsis
In the day... We put together a Hardware/software Spec. for an open system GIS (geographical information system) solution for the state Wisconsin. From what I remember it's a photogrammetry term, not a surveyors symbol it marks the center of an aerial photograph which would later be converted into topographic and tagged data. From what I remember it's transitory reference symbol not used in the final map or image.

Kinda like this

That whole surveyors symbol thing is a desperate attempt and a major, MAJOR FAIL.
Printer Friendly | Permalink |  | Top

Home » Discuss » General Discussion Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002
Software has been extensively modified by the DU administrators

Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC